There is no Set-/Update- cmdlet for management roles, so you have to remove/recreate it.
How to modify custom RBAC "description"
Raman03
1
Reputation point
In Exchange Online I created new custom Management Role.
New-ManagementRole -Name cust_ownerdistributiongroups -Parent MYDistributionGroups -Description "This is a custom role enable individual users.."
Everything worked fine. Now I wanted to modify "Description" for this new Custom role "cust_ownerdistributiongroups".
If anyone knows please let me know.
Thanks,
Raman